Spark Plug Champion J8C Connections: It features a 1/4"

Connections: It features a 1/4" Male Pipe Thread (MPT) connection at the bottom and a 1/4" Female Pipe Thread (FPT) connection on the side

Drill Size: 3/16 inch (0

18 cubic inches in the first stage and 0

Crown 21735

Spark Plug Champion J8C Connections: It features a 1/4"The Champion J8C Spark Plug is a Copper Plus spark plug designed for small engines and power sport applications. Here are its key specifications: Part Number: 841 1 Thread Size: 14mm Thread Reach: 0. 375 inch Hex Size: 13 16 inch (20mm) Heat Range: 8 Seat Type: Gasket Preset Gap: 0. 027 to 0. 033 inch Resistor Plug: No Center Electrode Tip Material: Nickel Copper Alloy Ground Electrode Tip Material: Nickel Design: Standard Applications: Small engines,